278972112560

素因数分解:

$2^4\times 5^1\times {\mathrm{3487151407}}^1$

素因数の和:3487151420

約数の個数: 20

約数和(自身を含む): 648610161888

約数和(自身を除く): 369638049328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3487151407, 6974302814, 13948605628, 17435757035, 27897211256, 34871514070, 55794422512, 69743028140, 139486056280, 278972112560]

約数ペア:

[(1, 278972112560), (2, 139486056280), (4, 69743028140), (5, 55794422512), (8, 34871514070), (10, 27897211256), (16, 17435757035), (20, 13948605628), (40, 6974302814), (80, 3487151407)]